Attachment for calculating-machines.



S. E. CARLIN;

ATTACHMENT FOR CALCULATING MACHlNES APPLICATION man Nov/2s; 1910.

1,228,404. Patented June 5,1922.

- STATES PATENT OFFICE.

'ncnnnnv, or CHICAGO, ILLINOIS, ASSIGNOR, BY MESNE ASSIGNMENTSQI'O unnnnwoon coMPUTmG vIAcI-nun COMPANY, or NEW YORK, 1v. Y., A CORPORA- Tlonor NEW YORK.

. ful Improvements in Attachments for Calfsculating-Machines, of which the following is aspecification. Inmy application for United States Letters Patentl Serial No. 547,300, filed March 4, 1910,:the're iss'hown and 'describedan im- :proved calculating attachment for typewriting'ma'chines embodying registering mechan sm comprisingregisters or totahzers and traveling actuating Ineans therefor, which actuating means is adapted to be moved-into .and outofoperating position with relation to the registe'r, and in a direction transverse to the axis of the operating mechanism and .to be advancedto change its denominational relation;to='the-number bearing wheels or members of the totalizer.

1 It has been found in ractice that as the tr veling' ac tuating mechanism is advanced to'changits denominational relation to the number bearing wheels or members of the 'totalizer'fit-does' not accurately position itself with respect to the operating wheels of thanumber bearing members. It is one of the'objects of the present invention to provide an improved: attachment for calculat-' l-ingfmalchines' having means for accurately positioning the traveling actuating mechanism withre'spct tothe operating gears of the t'otalizerand for holding the actuating mechanism-in this position during the opera- 5 tion.'ofthe-"numb'er bearing members of the totalizer,"

A'fu'rther object is to provide an improved device of this character which will be simple,

' durableandc'heap in construction, and efi'ec- -tive and eflicient In operation.

sever Tof the attainment of these ends and the accomplishment of other new and useful ob ject's, as iviu appear, the invention consists mentfof the invention; and in which "-5.3 Figure 1 is a detail sectional 'viewtaken Specification of Letters Patent.

f novelt in the construe-- n combinationf' and' arrangement of the ara parts hereinafter 'more, fully 'describedan'd claimed and shown inthe accom vpanying drawings illustrating" an embodij I ATTACHMENT FOR CALCULATINGQMACHINES.

Patented June 5, 1917.

Application filed November 26, 1910. Serial No. 594,255.

Fig. 3 is a: detail perspective view of a portion of this improved attachment. Referring more particularly to the draw,- ings and to the present egremplification of the invention shown herein, the numeral 10 designates a support for holding the total: izer in position, said totalizer being designated generally by the reference numeral 11.

The totalizer comprises the number bearing 18 which is adapted to be successively brought into mesh with the gears 14 asthe actuating mechanism advances. Motion is imparted to the gear 18 from a gear 19 and this gear 19 is in turn operated by meansv of the gear'20. The gears 19 and 20 are mounted on a shaft 21 for rotation therewith and this shaft 21 is journaled in suitable bearings 22 on the carriage 23. The carriage 23 moves between guides 24 on the base 25 of the machine. This carriage is adapted to be-advanced by the advancing movement of the typewriter carriage through the medium of an arm 26 which is pivotally supported as at 27. One end of the arm 26 is operatively connected to the typewriter carriage and the other end has an operating connection with the carriage 23 by means of a rack 28 connected with the carriage 23 and a segment 29 on the arm 26 in' amanner .70 reference numeral 17 and embodies a gear similar to the manner shown and described in the above referred to application,-but as this feature forms no part of the present in- The traveling actuating mechanisni 17 is" pivotally supported on the shaft 21andis1 adapted to beadjusted soias to'move the" gear 18 :out of operating position Vith IG-;} spect tothe gears 14 =andi Fin a 'direction,;.-I- transverse to the axis of the operatingmechanism by means of a rock shaft 30, to which is connected an-arm 31 having, connection wvith the'traveling actuating mechanism by means of. the connecting members 32, 33..

Thisrock shaft 30 is rocked by. means of an arm 34 to which is connected a link 35,

rugated. or toothed drum or cylinder 36 Y of the gear 18 by mounted on a running shaft 37 This drum or cylinder 36 is of some length so as. to

permit the traveling actuatingv mechanism 17 to be advanced while the gear 20 still remains in mesh therewith. All of the above described mechanism, however, forms no partofthe present invention and constitutes a portionof the subject matter of the application above referred to. The operation of the mechanism thus far described, briefly stated, is as follows: Assuming the the drum 36 will also shaft 37 to be running, be running and as the gear 20 meshes therewith rotary motion' will be imparted to the shaft 21. This shaft in turn will impart a rotary motion to the gear 19 which operates the gear 18 and this gear in turn actuates the opposite operating gear 14, of the to-. talizer. The traveling actuatingfmechanism is adapted to be moved out of operative position in a direction transverse to the axis means of the rock shaft 30 and when this gear 18 is thus moved into an inoperative position with respect to the gear 14, the carriage 23 and consequently the traveling actuating mechanism designated generally by the reference numeral 17 will advance to, change its denominational relation to the number bearing members or wheels of the totalizer 11. After the traveling actuating mechanism has moved one step of advancement, the rock shaft 30 will operate to bring the gear 18 into mesh with the next .gear 14. This operation will be continued until the gear 18 has traveled the length of the totalizer at whichtime the traveling actuating mechanism will be auto: matically returned to its starting position in the manner as set forth in theapplication above referred to.

During this advancement of the traveling actuating mechanism, been found that the gear 18 does not always accurately mesh with the gears 14, and, for this reason, the attachment forming the sub ject matter of the present application is applied. I Any suitablemeans may be provided for causing the gear 18 to be properly positioned to mesh with the gears 14. successively but a suitable and eflicient mechanism for accomplishing this result will now be described. Y

Mounted upon the frameof the totalizer 11 is a support 38 which may be of any suitable construction but is preferably in the form of a bracket, which projects beyond the totalizer frame and mountedfupon and supported by this bracket 38 is, a rack 39 which may be constructed either: independently of the bracket 38'and secured thereto by means of suitable fastening devices 40 as shown,or may be formed integralla therewith. This rack 39 is preferably in 6 form and in practice, it has.

. mechanism,

41 are pointed or reduced as shown to form beveled faces 43, the adjacent faces 43 of adjac'ent teeth41 converging from the free extremities of the respective teeth inwardly toward the recesses 42, thereby forming en larged entrance openings to the recemes having beveled or inclined faces 43.

..The bracket38 and teeth41are stationary withrespect to the traveling actuating mechanism and cooperating with the teeth 41 is an arm or bracket 44, which is supported by and movable with the traveling actuating mechanism 17. This arm or bracket 44 is proviled with a laterally-projecting portion 45 having a reducedextremity 46,whichv extremity 46 is adapted to enter the. recesses 42 in the member 39 and is of a width to substantially fill the recesses. The laterally projecting portion 45 of the arm 44 is of such a length that when the traveling actuating mechanism is shifted so as to move the operating gear 18 into an inoperativeposition with respect to the gears 14, to permit the actuating mechanism to be advanced, the extremity 46 thereof will be moved out of the recess 42 and clear of the extremities of the teeth 41. \Vhen the trav: cling actuating mechanism 17 is shifted to move the gear 18 into mesh with one of the gears 14, the reduced extremity 46 of the when the actuating mechanism is shifted in i a direction transverse to the axis of the gear 18, to move the latter into. mesh with the gear 14, will engage one or the other of the beveled or inclined faces 43 of the recess 42, so as to shift the traveling actuating mechanism 17 in one direction or the other so that the extremity 46 will enter the recess 42. \Vhen the parts-are in this position it will be apparent that the traveling actuating mechanism will be locked against advancement and cannot be advanced until the extremity 46 of the arm 44 is withdrawn from the recess 42.

While in the present exemplification of the invention this attachment is shown as being located above the traveling actuating it is to be understood that it will be located in any convenient position so that it will-operate to cause the proper register of the gear 18 of the traveling actuating mechanism with the respective gears 14.

What is claimed as new is 1. The combination with a register, of ac .tuating mechanism for said register, said register-and saidactuating mechanism hav ing a relative movement past each other, so

as to ,bring saidnactuating mechanism successively lnto cooperation with individual parts of saidregister, and also having a rel ative movement toward and from each other, to connect and'disconnect them operatively, means. for bringing said actuating means andsaid" register intov approximate coopera- .tive relation,and justifying means for bringing 'saidregister and said actuating mechanism nto "accurate cooperation with each otlie'r; said ustifying means acting to lock said register and said actuating mecha-- nism against a relative movement past each other-until they "have had a relative movement away from each other.

2. The combinationwith a register,-of ac-- bringing said register and said actuating mechanism into, accurate register with each other.

3. The combination with a register, of actuating mechanism for said register, said register and said actuating mechanism'having a relative. movement past each other, so

as to bring said actuating mechanism successively into cooperation with. individual parts of sa d register, and also having a relative movement toward and from each other, to connect and disconnect them operatively,

means for bringing said actuating means and said register into approximate cooperative relation, and justifying means, mounted partly on said register and partly on said actuating mechanism, for bringing said register and said actuating mechanism into accurate cooperation with each other, the relative movement of said registerand said actuating. mechanism in one. direction control ling their relatlve movement in another direction through the intermediary of said. justifying means.

4. .The combination with a register including a seriesof computing wheels, of an-actuating mechanism for said register, said actuating mechanism and said register having a relative traveling movement to enable saidactuating mechanism to drive said. eomputing wheels seriatim, and a relative movement to cause engagement of said register and actuating mechanism and justifying means for justifying said actuating mechm I nism with respect to the particular comput ing wheel wlnch it is to dr1ve at thelmstant of meshing of the actuating mechanism with said computing wheel, sald'ju'stifying means acting to lock said register and saldactuat' ing mechanism against a relative movement past each other during the period-of nieslr 1 said-justifying means includingnormally disengaged parts, one on'the framework and the other on the relatively trave ling member; and provision being made to 1 cause the ustifying parts to come into lock-" ing engagement at the relative movement bc- 1 tween said actuating mechanism and said 5 register, which causes engagement betiveenff said register and actuating mechan is1n' 5. The combination withaseriesoflcomputing wheels, of a master wheel/r 1- ing said computing wheels"sriazim,"sa

master wheel and computing wheelshaving relative movement past each other, and ha'v ing a. relative movement" to cause engagement of said master wheel and computing wheels and ustifying means for bringing said master wheel lnto perfect register with .each computing wheel at the inst-ant of meshing of themaster'wheel with each computing wheel, said justifying means'actlng to lock said computing wheels and said master wheel against a relative movement past each other during the period of meshing;

.said justifying means including normally disengaged parts, one on the framework and the other on the relatively traveling memher; and provision being made to cause the justifying parts to come into locking en,- gagement at the relative movement between said master wheel and said computing wheels, Which causes engagement between said master wheel and computing wheels.

6. The combination with a series of computing wheels, of a master wheel for driving said computing wheels seriatim, said computing wheels and said master wheel having a relative movement transverse to the axes of rotation thereof, and justifying means brought in play by said relatlve transverse movement for causing an accurate registering of the master wheel with each computing wheel as it meshes to drive the same.

7. The combination with two primary elements, to wit, a .series of computing Wheels 1 and a master wheel for driving said computing wheels .seri'a-tim, of justifying means for accurately registering said master wheel with each computing wheel as it meshes to drive the same, said justifying means in-' cluding a rack connected to one of said elements and the teeth thereof being beveled at their extremities, and an arm having areduced portion to engage the bevels of; said teeth and settle between straight portions of said teeth, said arm having beveled: faces at rately determine the relative-position of said the roots of said'reduced portion to engage the beveled 'ends of said teeth and accumaster wheel with respect to one of said computing wheels.

8. The combination with aseries of computmg wheels, of a master wheel for drivmg said computing wheels sel iat'im, a. frame for swinging said master wheel bodily toward and from said computing wheels so as to engage and disengage said master wheel with respect to said computing wheels, a rack connected to said computing wheels and having guiding teeth spaced to correspond to the several computing wheels, and

' an arm secured to said swinging frame, having a guiding portion to engage between the teeth of said rack as said frame swings to move the master wheel mto engagement with each of said computing wheels, so as to justify the position of said master wheel with the engaging computing wheel.

said master wheel to drive said register and said rack and said finger to lock said register and said master wheel against a relative traveling movement while said master wheel is driving said register.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, on this 22nd day of November, A. D. 1910.

SAMUEL E. CARLIN.

Witnesses:

J. H. JooHUM, Jr., M. W. CANTWELL. 

